Pipe-wrench



NO. 882,272 PATENTED MAR.17, 1908. H. SIMMS. PIPE WRENCH. APlLIG k" IOT FILED APR 20 1907 ATTORN Y m 5 d. o

" pipe jaw head which operates automatically may be toothed or not, as desired, the inner in cross section, the strap embracing and Near the outer end of the movable jaw (3) HENRY W. SLlIMS. Ql Bl Y tI'lY, MICHIGAN.

PIPE-WRENCH Specification of Letters Patent.

Patented March 17, 1908.

Application filed April 20. 1907. Serial No. 3651 280 To all whom it may concern: Be it known that I, HENRY VV'. Sums, a citizen of the United States, residing at Bay City, in the county of Bay and State of Michigan, have invented certain new and useful Improvements in Pipe-Wrenches; and l do hereby declare the following to be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wrenches, one object of which is to provide a quick and accurate adjustment capable of manipulation by the hand of the operator grasping the wrench. Another object is the provision of a pipe jaw orhead capable ofapplication to a wrench. A further object is the provision of a neat, simple and inexpensive device capable of being easily and quickly assembled and disassembled.

A still'further object is the provision of a to engage and release the work without the employment of springs.

Still another object is the provision of a wrench consisting of but few parts which can be easily mannfzu-tured and kept in stock.

To these and other ends, therefore, my inventionconsists in certain novel features and combinations, together with their cquiv-' alents, such as will be more fully described, hereinafter and particularly pointed out in the claims.

In the accompanying drawings. Figure l is a side view of a construction embody ing' one form of my invention; Fig 2 is a similar view partly broken away; Fig. 3 is a detail per spective view of the thumb latch; Fig. 4 is a detail cross sectional view of the pipe wrench head; and Fig. 5 is an end view of the jaw parts being shown in cross section.

(A) indicates the stock or handle of a wrench provided witha rigid jaw (l) which face of the handle having teeth (2) formed thereon. (B) indicates a strap preferably U-shapcd sliding relative to the handle (A). The lower jaw (3) is received between and secured to the free ends of the strap (B). The base l of i he movable jaw rests against or adjacent to the toothed edge of the handle (A), the movable jaw being approximately right-triangular in shape.

and beyond the ends of the strap (B) is formed a socket (4), one wall of which is prolonged, as at (5) to form a stop, for a purpose hercinaftcrset forth.

A dog (6) is provided, one endv (7) of the dog lieing rounded and movably received in the socket'(4) in such manner that the dog is permitted a movement toward and from the toothed edgeof the handle, the dog extending obliqiiely from the outer end of the movable jaw (3) toward the handle, the rear end of the dog being provided with teeth (8) adapted to mesh with teeth (2) of the handle. A leaf spring (9) having one end engaging thejajw ((1) near the socket (4), is provided, the spring extending rcarwardly between the inclined face (10) of the ja and the inner inclined face of the dog ((3), the rear end or the spring engaging the rear end of the dog,

as shown at (ll), whereby the teeth (S) (if the dog are caused at all times to engage the toothed edge of handle (A).

A pin (0") extending between the ends of the strap (13) and above the spring normally retains the latter in position.

Loca fed at the extreme end of the pawl or dog is a curved thumb lever (12), the same being sjbtted at its forward end, as at (13), i to receive the rear end of the pawl or dog (6).

The curved under-fm-v (l4) of the thumb lever rests upon the toothed edge (2) of the handleqthe tll(l(lf curvature of the lever being such that by depressing the outer free end of the lever (l2). the inner slotted end of'thc lever will be raised. carrying with it the rear end of the pawl or dog ((3) against the tension of spi ing (.l) to release the teeth (8) of the pawl .from' the teeth (2) of the handle (A) and allow the movable jaw and strap to be slid relative to the stationary jaw (l). The slottedi end of the thumb lever (12) is pivoted to'the rear end of pawl (6), as at (15). The stop (7) operates to limit the outward moveinent of the pawl (6) from thc'handle (A).

One end of the spring (9) is loosely re-.

ceived in a kerf (ll) in the do or pawl (6), and toremove the pawl from t 10 wrench, all that is necessarv is to pull the rear end of the pawl outward from the handle until it clears the free ends of the strap (B) whereu on a, lateralmovement of the pawl will isengage the latter from the socketv (4) and spring (9), a reversal of this movement resulting in replacing the pawl;- a)

When the wrench is in use, the pressure heed to rock. or oscillate back an s permitted sliding reciprocatory play necessery to a pipe prone-h and when the head (17 slides toward the outer end of the face I 3' 1. A wrench ,a jaw shdable thereon, a rigid opposite end of'the pawl. extending the aw and being the work sernnt a fresh hold being obtained.

1 (23) passes, the pin being seated in the ends 'of the strap. (l3) and limit ofits movement will rest squarely upon the face (20) of the jaw separate from the pawl for taining the teethof the obvious the movable jaw (3) solid use as a monkey wrench, l i i he jaw (3) as being provided with e i (16) adapted to receive a. mcwable.pipo'w=. ich head (17)'to0thed, as

at 18),thepipe wrench head being T-sheped in cross section, theweb (19) o the head being received in the 'lccrf (16). The under face of the body portion of the head restsupon the jaw, which jawis cut away on an incline as, st (26), toienable the ipe wrench d forth. B cutting away the jaw ts at (20), the head 1s (20) of the jaw (3) it maybe released from either to remove the wrench or to The web of the head is provided with an enlarged aperture (22)through which a pm the web (19) is preferably rounded slightly to facilitate the rocking rnotion.

the body portion of thehead at either (3) and the play sflorded the head (17) by the enlarged aperture (.22) cooperates with the" clearance afe forded by the inclined face (20) of'the jaw to permit the head to alternatelv gri and release the work as the wrench is move back and forth in the-arc of; circle. f

"Having thus Folly disclosed my invention, what I chiim as new is-- 4 comprising a toothed handle, lever pawl, one end of which is pivotally connected, to the "ow, thesides of the jnw being cut awity to looselyreceive and guide the lever-pawl, the

beyond toothed, the teeth nz'eshe handle, a spring normally mainpawl in engagement I with the teeth of the handle, the pawl being removable from the jaw against the tension of the'springfand a dog extending rearwnrdly from the pawl and in substantial alinement therewith, the head of thodog being eccentric i and pivotally connected to the toothed end I ingwith: the teeth on th pf thepaw'hand resting on the toothed, edge j pawl forming a. toggle.

' through the slot and the walls pawl being upof the handle, the tail, of the the dog and curved away from the handle,

2. A wrench comprising a toothed handle, a jaw s'lidable thereon, the jaw having kerl therein, a T-sh'aped head, the web of the head being loosely received in the kerf, the Web being slotted transversely, a pin passin of the vker teeth on the head, a. rigid lever pawl, one end of which is iivotally connected to the jaw, the sides of t e jaw being cut away to loosely receive and guide the leverpawl; the 0 posite end of the pawl extending beyon the jaw and being toothed, the teeth-mesliing with the teeth on thehandle, a springseparate from the pawl for normally maintainlng the teeth of the pawl in engagement with the teeth. of the handle, the pawl being removable'fr'om the jaw against the tension of the s ring, and a dog extendin rearwardly from the pawl andinsubstantia alinemerit therewith, thehead of the do beingeccentrioand f pivotally connected'to t e toothedjend'oi the owl, and rostingon the-toothed edge'of the andle, the tail of the pawl being upcurved away from the handle, the dog-gand pawl forming a toggle. 3. A wrench comprising a toothed handle, a jaw slidable thereon, the j aw having a kerf therein, a T-shaped head, the web of the head being loosely received in the laid, the

web beingslottedtransversely, a pin passing through the slota'nd' the walls of the kerf, the

upper kerfed edge of the jaw downward at an angle to the gripping position of the'head, the bout sliding on such slanted edge teeth onthe head', and id lever pawl, one end of'which is ivo'ta ly ,connected to the jaw, the sides 0 the jaw being cutaway to loosely receive and uide the lever pawl, the opposite end of tie pawl'e'xtending, beyond the jaw and being toothed, the teeth meshing with the teeth on, the hondle, a spring separate from the pawl for normally maintaining the teeth ,of the pawl in engagement with the teeth of the -handle,'the pawl being removable from the jaw against the tension of-the spring, and a dog extending rearwardly from the pawl and in subbeing slanted stantial alinclnent therewith,- the head of the dog boing'eccontric and pivotally connected to the toothed end of the pawl, and resting on the toothed edge of the handle, the tail of HENRY w. sIMMs. Witnesses: I

'. L..'G. SonoEssLEn, GEORGE, l. COBB. 

